Software /
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prosody
File
net/http.lua @ 3651:337391d34b70
s2s: SASL EXTERNAL
author | Paul Aurich <paul@darkrain42.org> |
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date | Sun, 21 Nov 2010 21:10:43 -0800 |
parent | 3569:f30da46e0add |
child | 4338:5d5d6c6d121a |
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-- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- local socket = require "socket" local mime = require "mime" local url = require "socket.url" local httpstream_new = require "util.httpstream".new; local server = require "net.server" local connlisteners_get = require "net.connlisteners".get; local listener = connlisteners_get("httpclient") or error("No httpclient listener!"); local t_insert, t_concat = table.insert, table.concat; local pairs, ipairs = pairs, ipairs; local tonumber, tostring, xpcall, select, debug_traceback, char, format = tonumber, tostring, xpcall, select, debug.traceback, string.char, string.format; local log = require "util.logger".init("http"); module "http" function urlencode(s) return s and (s:gsub("%W", function (c) return format("%%%02x", c:byte()); end)); end function urldecode(s) return s and (s:gsub("%%(%x%x)", function (c) return char(tonumber(c,16)); end)); end local function _formencodepart(s) return s and (s:gsub("%W", function (c) if c ~= " " then return format("%%%02x", c:byte()); else return "+"; end end)); end function formencode(form) local result = {}; for _, field in ipairs(form) do t_insert(result, _formencodepart(field.name).."=".._formencodepart(field.value)); end return t_concat(result, "&"); end local function request_reader(request, data, startpos) if not request.parser then local function success_cb(r) if request.callback then for k,v in pairs(r) do request[k] = v; end request.callback(r.body, r.code, request); request.callback = nil; end destroy_request(request); end local function error_cb(r) if request.callback then request.callback(r or "connection-closed", 0, request); request.callback = nil; end destroy_request(request); end local function options_cb() return request; end request.parser = httpstream_new(success_cb, error_cb, "client", options_cb); end request.parser:feed(data); end local function handleerr(err) log("error", "Traceback[http]: %s: %s", tostring(err), debug_traceback()); end function request(u, ex, callback) local req = url.parse(u); if not (req and req.host) then callback(nil, 0, req); return nil, "invalid-url"; end if not req.path then req.path = "/"; end local custom_headers, body; local default_headers = { ["Host"] = req.host, ["User-Agent"] = "Prosody XMPP Server" } if req.userinfo then default_headers["Authorization"] = "Basic "..mime.b64(req.userinfo); end if ex then custom_headers = ex.headers; req.onlystatus = ex.onlystatus; body = ex.body; if body then req.method = "POST "; default_headers["Content-Length"] = tostring(#body); default_headers["Content-Type"] = "application/x-www-form-urlencoded"; end if ex.method then req.method = ex.method; end end req.handler, req.conn = server.wrapclient(socket.tcp(), req.host, req.port or 80, listener, "*a"); req.write = function (...) return req.handler:write(...); end req.conn:settimeout(0); local ok, err = req.conn:connect(req.host, req.port or 80); if not ok and err ~= "timeout" then callback(nil, 0, req); return nil, err; end local request_line = { req.method or "GET", " ", req.path, " HTTP/1.1\r\n" }; if req.query then t_insert(request_line, 4, "?"); t_insert(request_line, 5, req.query); end req.write(t_concat(request_line)); local t = { [2] = ": ", [4] = "\r\n" }; if custom_headers then for k, v in pairs(custom_headers) do t[1], t[3] = k, v; req.write(t_concat(t)); default_headers[k] = nil; end end for k, v in pairs(default_headers) do t[1], t[3] = k, v; req.write(t_concat(t)); default_headers[k] = nil; end req.write("\r\n"); if body then req.write(body); end req.callback = function (content, code, request) log("debug", "Calling callback, status %s", code or "---"); return select(2, xpcall(function () return callback(content, code, request) end, handleerr)); end req.reader = request_reader; req.state = "status"; listener.register_request(req.handler, req); return req; end function destroy_request(request) if request.conn then request.conn = nil; request.handler:close() listener.ondisconnect(request.handler, "closed"); end end _M.urlencode = urlencode; return _M;